coondoggie writes: "A look at the history of a select portion of Facebook users from 2005 thorough 2011 finds a contrast in privacy — on one hand the group sought greater privacy controls but actually disclosed more personal data over time. A seven year study of 5,076 Facebook members by Carnegie Mellon University Researchers found that from 2005-2009, the social site users displayed more privacy-seeking behavior, progressively decreasing the amount of personal data shared with the public. But the trend abruptly reversed between 2009 and 2010"